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Proceedings Paper

Electron-hole processes determining the self-desensitization of dyes on the surface of AgHal microcrystals
Author(s): A. V. Tyurin; A. Ya. Bekshaev; S. A. Zhukov
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Paper Abstract

In the study of low-temperature (T = 77 K) luminescence of anionic, cationic and neutral-typel dyes adsorbed on the surface of AgHal microcrystals in molecular, H- and J-aggregated states, electron-hole processes are revealed that are responsible for the anti-Stokes anomalously slowed-down fluorescence and phosphorescence of the molecular dye upon its j-aggregate excitation. Based on the results obtained, a luminescent technique is proposed that enables to control the interactions processes between molecular and polymolecular forms of dyes of the three charge states. These processes are responsible for the "self-desensitization", and ways to reduce the negative impact of the "self-desensitization" effects are considered.

Paper Details

Date Published: 6 February 2020
PDF: 7 pages
Proc. SPIE 11369, Fourteenth International Conference on Correlation Optics, 113690L (6 February 2020);
Show Author Affiliations
A. V. Tyurin, Odessa I.I. Mechnikov National Univ. (Ukraine)
A. Ya. Bekshaev, Odessa I.I. Mechnikov National Univ. (Ukraine)
S. A. Zhukov, Odessa I.I. Mechnikov National Univ. (Ukraine)


Published in SPIE Proceedings Vol. 11369:
Fourteenth International Conference on Correlation Optics
Oleg V. Angelsky, Editor(s)

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